Masad Ayoob related a tale of a home invader struck with birdshot, dunno the range, the perp lived but as disfigured and blinded for life. His appearance was so awful that he was able to successfully sue the homeowner in Civil Court.

I don't ordinarily keep a shotgun for home defense but if I did it would probly be 12 or 20 (I have both) loaded with OO buck.

I know pumps would be good but I don't shoot these much, OTOH I'm very familiar with break-open doubles. I might short-stroke a pump under stress but I could get two shots for sure with a double.

"...if the gentlemen of Virginia shall send us a dozen of their sons, we would take great care in their education, instruct them in all we know, and make men of them." Canasatego 1744